.timeline{
    margin: 50px auto;
    width: 1240px;

}
.title{
    text-align: center;
}
.item{
    width: 50%;
    height: 100px;
    display: flex;
    overflow: hidden;
}
.img{
    width: 50%;
    height: 100px;
}
.img:hover{
    width: 60%;
    height: 110px;
    transition: 0.5s;
}